Solution : https://service.sap.com/sap/support/notes/1363911 (SAP Service marketplace login required)
Key words : 
control panel --> add\remove programs, /swdc--> downloads--> sap support packagesat, --> sap frontend components--> bi addon, sap frontend compilation cds, erroneous patch installs libraries, sap gui--> bi 7, sap highly recommends, sap support packages, left frame choose, existing frontend tools
Related Notes : 
       
| 1229206 | Front end check tool SAPBExC.xla (BW 3.x and BI 7.x) | 
| 1089212 | BI Addon (7.10): not able display workbooks with Office 2007 | 
| 1052761 | Pre-requisite for using 3.5 BEx Analyzer in Excel 2007/2010 | 
| 1025122 | BEx Analyzer and compilation CD 1 of SAP GUI 7.10 | 
| 1013205 | Pre-Requisite for BI Precalculation service 710 | 
| 1013202 | Installation check tool for BI 7.x Standalone frontend | 
| 1013139 | Prerequisite for BI 7.x and BW 3.x Frontend (BEx Tools) | 
| 147519 | Maintenance strategy / deadlines for SAP GUI |